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7c38e6bb52
Add a variable to indicate the latest standard known to be supported for
each language:
* `CMAKE_C_STANDARD_LATEST`
* `CMAKE_CXX_STANDARD_LATEST`
* `CMAKE_CUDA_STANDARD_LATEST`
* `CMAKE_HIP_STANDARD_LATEST`
* `CMAKE_OBJC_STANDARD_LATEST`
* `CMAKE_OBJCXX_STANDARD_LATEST`
These variables, more generally referred to as
`CMAKE_<LANG>_STANDARD_LATEST`, are assigned an integer value which
represents the minimum between the latest version of the associated
language standard supported by the current compiler and the latest
version supported by CMake.
Add documentation for these variables in a new page called
`CMAKE_<LANG>_STANDARD_LATEST` was added under the "Variables for
Languages" section of the `cmake-variables(7)` page.
Update each compiler-specific CMake script under
`${CMAKE_ROOT}\Modules\Compiler` to manually define the relevant
`CMAKE_<LANG>_STANDARD_LATEST` variable as necessary. This will
require updating and maintaining as newer compiler versions become
recognized by CMake.
Closes: #25717
66 lines
2.4 KiB
CMake
66 lines
2.4 KiB
CMake
include(Compiler/Intel)
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__compiler_intel(C)
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string(APPEND CMAKE_C_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
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string(APPEND CMAKE_C_FLAGS_RELEASE_INIT " -DNDEBUG")
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string(APPEND CMAKE_C_FLAGS_RELWITHDEBINFO_INIT " -DNDEBUG")
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set(CMAKE_DEPFILE_FLAGS_C "-MD -MT <DEP_TARGET> -MF <DEP_FILE>")
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if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
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AND CMAKE_GENERATOR MATCHES "Makefiles|WMake")
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# dependencies are computed by the compiler itself
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set(CMAKE_C_DEPFILE_FORMAT gcc)
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set(CMAKE_C_DEPENDS_USE_COMPILER TRUE)
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endif()
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if("x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC")
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set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -TC)
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set(CMAKE_C_CLANG_TIDY_DRIVER_MODE "cl")
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set(CMAKE_C_INCLUDE_WHAT_YOU_USE_DRIVER_MODE "cl")
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if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.0)
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set(CMAKE_C90_STANDARD_COMPILE_OPTION "-Qstd=c89")
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set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-Qstd=c89")
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set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C99_STANDARD_COMPILE_OPTION "-Qstd=c99")
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set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-Qstd=c99")
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set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C_STANDARD_LATEST 99)
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endif()
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if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 16.0.0)
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set(CMAKE_C11_STANDARD_COMPILE_OPTION "-Qstd=c11")
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set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-Qstd=c11")
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set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C_STANDARD_LATEST 11)
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endif()
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else()
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set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c)
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if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.0)
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set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c89")
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set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu89")
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set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
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set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
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set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C_STANDARD_LATEST 99)
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endif()
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if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 15.0.0)
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set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
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set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
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set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
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set(CMAKE_C_STANDARD_LATEST 11)
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endif()
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endif()
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__compiler_check_default_language_standard(C 12.0 90 15.0.0 11)
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set(CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
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set(CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
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